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ARDEN HILLS CITY COUNCIL WORK SESSION — APRIL 22, 2024 2 Rachel Haase, Kimley Horn, provided the Council with a summary on the draft TCAAP AUAR. She explained an AUAR was a hybrid of an environmental assessment worksheet and environmental impact statement. She stated what makes an AUAR was that an AUAR evaluates development scenarios versus a specific development proposal. She reported an AUAR was a planning tool that could help the City understand how different developmental scenarios will affect the environment of the community so the City can identify potential impacts and mitigation strategies. She explained AUAR's must be completed every five years until all development in the area has been approved. She provided an overview of the historical AUAR's which were completed in 2014 and 2019. She noted the study covered five major intersections which included Mounds View Boulevard and County Road H, CSAH 96 and US Highway 10, CSAH 96 and Northern Heights, County Road H and I-35W SB ramp and County Road H & I-35W NB ramp. She reported the AUAR evaluated a variation of the maximum development scenario with a discount retail superstore. Ms. Haase commented on the differences between the traffic analyses between the 2024 AUAR and the County's traffic study. She explained different intersections were studied and the studies had different horizon years (2030 versus 2040). She reported overall, the two traffic analyses' findings were consistent. The trip generation results were reviewed with the Council. Councilmember Holden asked if the trip generation numbers included the big box retail. Jacob Rojer, Kimley Horn, stated this was included in a separate scenario and would bring the maximum daily trips up to 50,000. Ms. Haase reviewed the capacity analysis findings with the Council. She reported Mounds View Boulevard and County Road H would operate at Level E during the PM peak hour under both development scenarios. She explained all other intersections that were evaluated would operate at Level C or better under both development scenarios, including the maximum development scenario with the discount retail superstore. Mayor Grant asked if there was a concern with any of the turning movements. Mr. Rojer reported several of the minor turning movements had a lower rating, but the overall intersection as a whole would operate properly. He stated with only one movement at a Level F, he would not be proposing mitigation measures. Councilmember Monson recalled from the Ramsey County traffic study presentation that one left hand turn had an F rating. She asked if the AUAR would identify the Level F areas within an intersection. Mr. Rojer indicated this would be identified within the AUAR. Councilmember Holden questioned how many of the intersections were categorized at a Level C. She was of the opinion the City should not be happy with a Level C when there were opportunities to make things better with this new development. Mr. Rojer stated building appropriate infrastructure would be the key to supporting this development. He indicated expanding Highway 96 to six or eight lanes would assist with